Stress and severe weather can also trigger bloat.

I would caution untrained people trying to tube a dog with bloat.

If the stomach is already twisted, you won't be able to pass a tube and could actually perforate something and make matters even worse.

I would only try this if I were in the middle of nowhere and couldn't get to a vet. Bloat is a true emergency and any dog showing signs should get to a vet asap. The gas x hopefully will buy you a few extra minutes.